Zoom on the Lynx arc

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The Lynx arc is 1 million times brighter than the well-known Orion Nebula, a nearby prototypical star-birth region visible with small telescopes. The newly identified megastar-birth cluster contains a million blue-white stars that are twice as hot as similar stars in our Milky Way galaxy. The megastar cluster was detected by NASA's Hubble Space Telescope, as a gravitationally magnified smear in light embedded in an image of a relatively nearby galaxy cluster.